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EGTB: win in 4 half-moves

# move score
1 Rb6 win in 3 half-moves
2 Ra1 draw
3 Ra2 draw
4 Rbf2 draw
5 Rh6 draw
6 Rhc2 draw
7 Rbh1 loss in 4 half-moves
8 Rb3 loss in 2 half-moves
9 Rb4 loss in 2 half-moves
10 Rb5 loss in 2 half-moves
11 Rb7 loss in 2 half-moves
12 Rb8 loss in 2 half-moves
13 Rbc2 loss in 2 half-moves
14 Rbd2 loss in 2 half-moves
15 Rbe2 loss in 2 half-moves
16 Rbg2 loss in 2 half-moves
17 Rc1 loss in 2 half-moves
18 Rd1 loss in 2 half-moves
19 Re1 loss in 2 half-moves
20 Rf1 loss in 2 half-moves
21 Rg1 loss in 2 half-moves
22 Rh3 loss in 2 half-moves
23 Rh4 loss in 2 half-moves
24 Rh5 loss in 2 half-moves
25 Rh7 loss in 2 half-moves
26 Rh8 loss in 2 half-moves
27 Rhd2 loss in 2 half-moves
28 Rhe2 loss in 2 half-moves
29 Rhf2 loss in 2 half-moves
30 Rhg2 loss in 2 half-moves
31 Rhh1 loss in 2 half-moves